Did you run Exchange Server in the past, but you have since uninstalled all Exchange Servers in the organization? Do you run an Exchange Server older than Exchange Server 2013 in the organization? This article is essential for you, and…
We have Azure AD Connect V1 running in the organization. We like to upgrade from Azure AD Connect V1 to Azure AD Connect V2. We recommend you follow the article Upgrade Azure AD Connect when upgrading to the latest version.…
We want to create a Hybrid deployment between Exchange on-premises and Exchange Online. When we run the Office 365 Hybrid Configuration Wizard for the first time, go through all the steps and click on update, we get the error: HCW8077…
When was the last time you changed the KRBTGT account password? If you don't know the answer, it most likely means it's a bad sign. Did you know that Microsoft recommends resetting the KRBTGT account password at least every 180…
The monitoring software is triggering you with the error Event ID 36871: A fatal error occurred while creating a TLS client credential. The internal error state is 10013. In this article, you will learn why this is happening, and the…
You like to remove a mailbox server from DAG (Database Availability Group). However, when performing the removal task, you get the error: Mailbox server cannot be removed from the Database Availability Group because mailbox database has multiple copies. Use Remove-MailboxDatabaseCopy…
The time has come, the Exchange Server DAG (Database Availability Group) member failed, and it's not starting anymore. Of course, this is not great news because one Exchange Server failed. However, as long as you have a DAG configured, the…
Frustration about the autodiscover URL when you migrate to Office 365/Microsoft 365. Where do you need to point your autodiscover URL to in an Exchange hybrid configuration? Do you need to point the autodiscover record to the Exchange on-premises or…
How to renew a certificate in Exchange hybrid? You have a new third-party certificate installed on the Exchange Server. Now that you finished that task, you like to remove the old certificate. But, you get a message that these certificates…
You have enabled remember Multi-Factor Authentication on trusted device in Office 365 Multi-Factor Authentication. When you look at the setting, you see that Microsoft recommends using Conditional Access sign-in frequency. Let's look at how to move from remember Multi-Factor Authentication…
